Miter-box.



A. ROBBINS.

MITEB Box. APPLIOATIbN FILED SEPT. 7.1909. 976,296; PatentedNov. 22, 1910.

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THE'NORRIS PETERS 211., WASHINGTON, n. c.

A. ROBBINS.

MITER BOXv APPLICATION FILED SEPT. 7, 1909.

Patented Nov. 22, 1910.

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Witnesses Inventor,

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ALEXANDER ROBBINS, OF KALAlVIAZOO, MICHIGAN.

MITER-BOX.

crease.

Specification of Letters Patent.

Patented Nov. 22, 1910.

Application filed September 7, 1909. Serial No. 516,583.

To all whom it may concern:

Be it known that I, ALEXANDER ROBBINS,

a citizen of the United States, residing at Kalamazoo, in the county of Kalamazoo and the State of Michigan, have invented new and useful Improvements in Miter-Boxes.

This invention relates to improvements in miter boxes.

The main objects of this invention are, first, to provide an improved miter box which can be quickly adjusted to enable the cutting of bevel or miter joints of any angle, such as the joints required in rafters and roof boards of roofs, or in forming other joints. Second, to provide an improved miter box adapted to accomplish these results which is very simple in its adjustment, by the aid of which any particular rafter or roof board can be cut or any other board or piece cut, at the desired angle without the aid of a square or the like.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The structure described constitutes one efiective embodiment of my invention.

Other embodiments would be readily devised by those skilled in the art.

The invention is clearly defined and pointed out in the claims.

A structure constituting an effective and preferred embodiment of the features of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure 1 is a perspective view of a structure embodying the features of my invention, the work holder 10 being removed. Fig. 2 is a detail perspective of the structure shown in Fig. 1, with the work holders 10 in position, the saw and portions of the saw guide being broken away. Fig. 3 is a detail front elevation with the work holders 1O removed, and also the saw guide, and the parts below the main body base plate. Fig. 4 is an enlarged detail of the parts shown in Fig. 3, with one of the work holders 10 in position. Fig. 5 is a detail end elevation looking from the right of Fig. 4. Fig. 6 is an enlarged detail vertical section taken on a line corresponding to line 66 of Fig. 4. Fig. 7 is a detail section taken on a line corresponding to line 7--7 of Fig, 4, showing the means of attaching my improved work support to the main body.

In the drawings, similar reference characters refer to similar parts throughout the several views, and the sectional views arev taken looking in the direction of the little arrows at the ends of the section lines.

In the accompanying drawing I have shown my improvements embodied in a miter box of a well known type. My improvements being adapted to be added or attached to such a structure.

Referring to the drawings, 1 represents the body of the miter box, consisting of a base and a back, the back being arranged at right angles to the base and being provided with a central slit or saw opening.

A saw guide mounted on a vertical pivot is provided, but as the details of these parts form no part of my invention, and are well understood, I do not illustrate the same herein.

I provide a pair of work supporters 2, each comprising a base plate and a back plate, arranged at right angles to each other, the back plate being secured to the main back of the miter box as by means of bolts 3. The back plate is provided with series of holes, each one preferably having a plurality of series as 4, 5 and 6, the series 4 and 6 being vertically arranged and parallel, while the series 5 are horizontally arranged and preferably extend outwardly from the upper end of the series 4, as clearly appears in the drawings.

The work supports 2 are arranged on opposite sides of the central saw slit in the body back, and are preferably spaced so that their inner ends 8 form work rests for a piece of work arranged on the supports, as is shown in Fig. 1, the pin 7 being arranged through the gage holes to co-act with the rests 8 for supporting the work, as will be obvious from an inspection of Fig. 1. I preferably provide in this connection, work holders 10 which are trough-like in shape and right angled in cross section, and provided with bearing members 11 at the angles. These bearing members are adapted to be engaged with the bearings 9 on the work support base plate, so that the work holders 10 can be rocked or tilted on their bearings having gage holes 13 therein adapted to receive the supporting pins 14, the pins 15 being arranged through the gage holes in 'the back plate to assist in supporting the holders. These pins 15 are preferably threaded, as clearly appears in Figs. 51and 6. With the parts thus arranged, substantially any angle can be cut that is desired, by the proper adjustment of the work supports and the saw guide.

The gage holes in the back plate and in the support 12 are preferably provided with a scale so that the workmen can readily adjust the device to the work required.

I have illustrated and described my improvements in the form in which I have embodied them, as I find that form to be satisfactory. I am, however, aware that considerable modification in structural details is possible without departing from my invention, and I desire to be understood as claiming the same specifically in the form illustrated, as well as broadly within the scope of the appended claims.

Having thus described by invention, what I claim as new and desire to secure by Let ters Patent is:

- 1. In a miter box, the combination with the main, base and back, and a pivotally supported saw guide, the back being provided with a vertical saw opening; and a pair of work supports arranged one at each side of the said central saw opening in said back, each support comprising a base plate and a back plate, the back plate having gage holes therein, said supports being spaced so that the inner ends of their base plates serve as work rests, a work holder right-angled in cross section, having bearing members at the angle thereof, bearings on said base plate for said Work holder bearings, arranged so that the axis of said work holder is parallel with said base plate and said back plate, said work holder being removable, a support on the outer end of said work holder, having gage holes therein, a supporting pin on said base plate adapted to be engaged in said holes, and a gage pin adapted to be arranged through the gage holes in said back plate, to engage said work holder, all co-acting for the purpose specified.

2. In a miter box, the combination with the main, base and back, and a pivotally supported saw guide, the back being provided with a vertical saw opening; and a pair of work supports arranged one at each side of the said central saw opening in said back, each support comprising a base plate and a back plate, the back plate having gage holes therein, said supports being spaced so that the inner ends of their base plates serve as work rests, a work holder right-angled in cross section, having bearing members at the angle thereof, bearings on said base plate for said work holder bearings, arranged so thatthe axis of said work holder is parallel with said base plate and with said back plate, said work holder being removable, and a gage pin adapted to be arranged through the gage holes in said back plate, to engage said work holder, all co-acting for the purpose specified.

3. In a miter box, the combination with the main, base and back, and a pivotally supported saw guide, the back being provided with a vertical saw opening; of a pair of work supports arranged one at each side of the said central saw opening in said back, each support comprising a base plate and a back plate, the back plate having gage holes therein, said supports being spaced so that the inner ends of their base plates serve as work rests, and a gage pin adapted to be arranged through the gage holes in said back plate, all co-acting for the purpose specified.

at. In a miter box, the combination with a pivotally supported saw guide of a work support comprising a base plate and a back plate, the back plate having gage holes therein, a work holder right-angled in cross section, having bearing members at the angle thereof, bearings on said base plate for said work holder bearings, arranged so that the axis of said work holder is parallel with said base plate and with said back plate, said work holder being removable, a support on the outer end of said work holder, having gage holes therein, a supporting pin on said base plate adapted to be engaged in said holes, and a pin arranged through the gage holes in said back plate, to engage said work holder, all co-acting for the purpose specified.

5. In a miter box, the combination with a pivotally supported saw guide of a work support comprising a base plate and a back plate, the back plate having gage holes therein, a work holder right-angled in cross section, having bearing members at the angle thereof, bearings on said base plate for said work holder bearings, arranged so that the axis of said work holder is parallel with said base plate and with said back plate, said work holder being removable, and a gage pin arranged through the gage holes in said back plate, to engage said work holder, all co-acting for the purpose specified.

6. In a miter box, the combination with a pivotally supported saw guide work support comprising a base plate, a work holder rightangled in cross section, having bearing members at the angle thereof, bearings on said base plate for said work holder bearings, arranged so that the axis of said work holder is parallel with said base plate and with said back plate, said work holder being re movable, and means for adjustably supporting said work holder.

7 In a miter box, the combination with a pivota'lly supported saw guide of a work support comprising a base plate, a work holder right-angled in cross section, having bearing members at the angle thereof, bearings on said base plate for said work holder bearings, arranged so that the axis of said work holder is parallel with said base plate and with said back plate, and means for adjustably supporting said work holder.

8. In a miter box, the combination with a base and a back plate, said back plate being provided with a plurality of gage holes ar ranged in a plurality of vertical series; an adjustable saw guide; a work holder pivotally mounted on said base, so that its axis is parallel with said base and back plate, said work holder being removable from said base; a support for said work holder adapted to be engaged with said gage holes whereby said work holder is adjustably supported in its said bearing, said support for said work holder being adapted to serve as a. work rest when said work holder is removed.

9. In a miter box, the combination with a base and a back plate, said back plate being provided with a plurality of gage holes; a

saw guide; a work holder pivotally mounted on said base,

so that its axis is parallel with I said base and back plate; a support for said work holder adapted to be engaged with said gage holes whereby said work holder is adjustably supported in its bearing; all co- I acting for the purpose specified.

10. In a miter box, the combination with a base, of a saw guide; a V-shaped work holder pivotally mounted on said base with its axis parallel with the base, the axis being parallel with the holder; and a gage for said work holder.

11. In a miter box, the combination with a base, of a saw guide; a work holder pivotally mounted on said base with its axis parallel therewith and with the work holder 1 and disposed transversely to the saw guide; and a gage for said work holder, said work holder being adapted to receive and support I the work.

ALEXANDER ROBBINS.

WVitness es:

Mrs. B. JAY BIRD, B. JAY BIRD. 

